<?php
class Carrier extends DBconnect {
    private $event_id,
            $event_c_time, 
            $event_f_time,
             $_m,
             $_y,
             $_startDay;            

    function __construct($dbo=NULL) {
        echo 'Carrier类构造函数调用！';
        parent::__construct($dbo);
    }

}
?>